Overview
The ADT7461AR-REEL7, produced by Analog Devices Inc., is a dual-channel digital thermometer designed for temperature monitoring and alarm functions. It is particularly suited for use in PCs, thermal management systems, and other applications requiring precise temperature measurement and control. The device features both local and remote temperature sensing capabilities, making it versatile for various thermal monitoring needs.
Key Specifications
| Parameter | Value |
|---|---|
| Sensor Type | Digital, Local/Remote |
| Sensing Temperature - Local | -40°C to 120°C |
| Sensing Temperature - Remote | -55°C to 150°C |
| Output Type | SMBus |
| Voltage - Supply | 3V to 5.5V |
| Resolution | 8 bits |
| Accuracy - Highest (Lowest) | ±3°C |
| Operating Temperature | -40°C to 120°C |
| Mounting Type | Surface Mount |
| Package/ Case | 8-SOIC (0.154", 3.90mm Width) |
Key Features
- On-Chip and Remote Temperature Sensor
- 0.25°C Resolution/1°C Accuracy on Remote Channel
- 1°C Resolution/3°C Accuracy on Local Channel
- Automatically Cancels Up to 3 kΩ (Typ) of Resistance in Series with Remote Diode for Noise Filtering
- Extended, Switchable Temperature Measurement Range: 0°C to +127°C (Default) or -55°C to +150°C
- Pin- and Register-Compatible with the ADM1032
- 2-wire SMBus Serial Interface with SMBus Alert Support
- Configurable ALERT Output and THERM Output for Fan Control
- Standby Mode with Low Power Consumption
Applications
- PCs and Computer Thermal Management Systems
- Thermal Monitoring in Industrial and Commercial Equipment
- Environmental Control Systems
- Medical Equipment
- Power System Monitors
- Hand-held Applications Requiring Precise Temperature Monitoring
Q & A
- What is the temperature range of the ADT7461AR-REEL7?
The ADT7461AR-REEL7 can measure temperatures from -40°C to 120°C locally and from -55°C to 150°C remotely.
- What is the resolution of the ADT7461AR-REEL7?
The device has an 8-bit resolution.
- What is the accuracy of the ADT7461AR-REEL7?
The accuracy is ±3°C for the highest accuracy setting.
- What type of serial interface does the ADT7461AR-REEL7 use?
The device uses a 2-wire SMBus serial interface.
- Does the ADT7461AR-REEL7 support standby mode?
- Can the ALERT output be reconfigured?
- What is the package type of the ADT7461AR-REEL7?
The device is packaged in an 8-SOIC (0.154", 3.90mm Width).
- Is the ADT7461AR-REEL7 compatible with other devices?
- What is the purpose of the THERM output?
The THERM output allows on/off control of a cooling fan.
- How does the ADT7461AR-REEL7 handle series resistance in temperature measurements?
The device can automatically cancel up to 3 kΩ of resistance in series with the remote diode to allow noise filtering.
